Boron deficiency made worse by

  • Sandy soils
  • Alkaline soils
  • Soils low in organic matter
  • High levels of nitrogen
  • High levels of calcium
  • Cold wet weather
  • Periods of drought

Boron is important for

  • Improves flowering
  • Improves fruit set
  • Gives more even ripening
  • Increases alcohol level in berries
  • Increases sugar level in berries

Yara recommended fertilizers for Boron

YaraVita BORTRAC

YaraVita BORTRAC

Grapevines: Foliar application: 1-1.5 l/ha at flower truss visible, at flower buds separated and at fruit set. Also, 1-2 l/ha after harvest before leaf senescence. Water rate: 500-1000 l/ha. Soil application: 3-5 l/ha. Water rate: 50 l/ha minimum.

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YARA SOLUBLE BORON

YARA SOLUBLE BORON

Grapevines: 1-1.5 kg/ha at flower truss visible, at flower buds separated and at first fruit set. Also, 1-2 kg/ha after harvest before leaf senescence. Water rate: 200-1000 l/ha.

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N-CAL 15+18Ca+B

N-CAL 15+18Ca+B

Grapevines: Fertigate 130-360 l/ha in multiple applications from growth stage; new shoot growth to fruit set and again during post harvest. Refer to Yara crop programs and contact your local Yara sales agronomist for advice.

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